Add input.txt to 2005/boutines + format/typo check

The input.txt file is what the author included in their remarks as
input to try out. This has been integrated into one of the commands to
try in the try section (which did not even have a command to try out -
it just referred to the command in the to use section).

BTW: the author mentioned the Mersenne prime. Did you know that Landon
Curt Noll has held eight world records related to large primes?

2005/boutines/.gitignore

@@ -3,3 +3,4 @@ test.svg
 test.png
 boutines.orig
 prog.orig
+result.svg

2005/boutines/README.md

@@ -20,11 +20,18 @@ ruby -e '20.times{puts "#{rand} #{rand}"}' | ./boutines > test.svg
 
 ### Try:
 
-After running the above, use [ImageMagick](https://imagemagick.org/index.php)'s
-`convert` tool to convert the image to a png file:
+
+```sh
+./boutines < input.txt > result.svg
+```
+
+After running the above commands, use [ImageMagick](https://imagemagick.org/index.php)'s
+`convert` tool to convert the images to a png file:
 
 ```sh
 convert test.svg test.png
+
+convert result.svg result.png
 ```
 
 and then open it with your preferred graphics viewer or editor.
@@ -47,13 +54,17 @@ their name suggests"?
 
 _In memory of my father Pierre Boutines-Vignard._
 
+
 ### Walk-through
 
 My program works as follows:
 
+
 #### Input
 
-A list of 2D points in the unit square.
+A list of 2D points in the [unit
+square](https://en.wikipedia.org/wiki/Unit_square).
+
 
 #### Output
 
@@ -63,7 +74,7 @@ an [SVG](https://www.w3.org/TR/SVG11/expanded-toc.html) stream.
 This will possibly save a compressed SVG file and may be useful:
 
 ```sh
-./boutines | gzip > result.svgz
+./boutines | gzip > result.svg.gz
 ```
 
 Input consists of a list of floating points values separated by whitespaces
@@ -72,11 +83,11 @@ whitespace then the other coordinate (pointing downwards in the resulting
 graph) and a newline will just go fine:
 
 ```
-    0  0
-    0  1
-    1  0
-    1  1
-   .5 .5
+0  0
+0  1
+1  0
+1  1
+.5 .5
 ```
 
 Strictly speaking, you have to provide a **set** of points. If there are
@@ -84,6 +95,7 @@ duplicates in the list, there is no guarantee on the one to be shown (in
 addition their labels will overlap) in the resulting colored [Voronoi
 diagram](https://en.wikipedia.org/wiki/Voronoi_diagram).
 
+
 ### Caution
 
 This program might have been a lot shorter, but nearly impractical even for
@@ -113,8 +125,10 @@ for most devices (including many inkjet printers). If you ever miss precision
 on a particular dataset or peripheral, you may want to dive in and let `U` be
 the next power of `__LINE__`.
 
-NOTE: bad inputs will be sanctioned by the production of the 42nd Mersenne
-prime (ie. 2^25964951 -1); memory will be kept.
+NOTE: bad inputs will be sanctioned by the production of the 42nd [Mersenne
+prime](https://en.wikipedia.org/wiki/Mersenne_prime) (i.e. 2^25964951 -1);
+memory will be kept.
+
 
 ### Why I think this code is Obfuscated ?
 
@@ -129,34 +143,40 @@ complicated output statements.
 
 Be sure to check the antepenultimate line of code.
 
+
 ### Missing Features
 
+
 #### Color control
 
 Cell colors are chosen randomly (with a questionable rejection scheme). It
 might have been useful to input them along with sites coordinates, turning the
 application into a puzzling graphics engine.
 
+
 #### Site labelling
 
 The points are implicitly numbered in the order they were entered
 (starting at one). This can be overridden however, via a simple XSL
 transformation.
 
+
 #### Site radius
 
-The site radius is hardwired in the code, I still wonder why I did not
+The site radius is hardcoded in the code, I still wonder why I did not
 design it as a function of the underlying cell's area (which can be averaged
 for free) or at least a command line parameter. Same with the char set, the
 viewport and potentially every
 [SVG](https://www.w3.org/TR/SVG11/expanded-toc.html) property.
 
+
 ### See Also
 
 - [Voronoi at Wikipedia](http://en.wikipedia.org/wiki/Voronoi_diagram),
 - [An Excerpt from The Algorithm Design Manual](http://www2.toki.or.id/book/AlgDesignManual/BOOK/BOOK4/NODE187.HTM),
 - [Voronoi and Art](http://www.snibbe.com/scott/bf)
 
+
 ### Example Output
 
 > ![Voronoi diagram of two regular pentagon vertices](Voronoi.png)

2005/boutines/input.txt

@@ -0,0 +1,5 @@
+0  0
+0  1
+1  0
+1  1
+.5 .5 

thanks-for-fixes.md

@@ -2915,6 +2915,12 @@ Cody added the [alt code](2005/anon/README.md#alternate-code) with vi(m) like
 movements.
 
 
+## [2005/boutines](2005/boutines/boutines.c) ([README.md](2005/boutines/README.md]))
+
+Cody added the [input.txt](2005/boutines/input.txt) data file based on suggested
+input from the author, adapting it to a command to try out.
+
+
 ## [2005/giljade](2005/giljade/giljade.c) ([README.md](2005/giljade/README.md]))
 
 After Landon fixed the entry to compile with clang Cody noticed this does not